... V/F universal type. AC driver 380V 3 phase ,16 steps multi-speed JR6000 series frequency inverter,vector type ... from customers,for its high quality and stability,ac driver Function descriptionSpecification indexesControl natureControl modeControl Without PG ... functionsImportant functionRPM track,Torque limitation,Multi-step speed,automatic self-adjustment,Slip compensate,PID adjust,Sagged control, ...